11The DDA algorithm is used to:ADraw lines by incremental calculationBRender shadowsCFill coloursDClip polygonsView AnswerDiscussWorkspaceReportSaveEasy
12A 2D rotation transformation preserves:ANothingBOnly positionCShape and sizeDOnly colourView AnswerDiscussWorkspaceReportSaveEasy
13A frame buffer stores:AThe mouse positionBThe pixel values of the image to be displayedCThe program codeDSound samplesView AnswerDiscussWorkspaceReportSaveEasy
14Ray tracing produces realistic images by:AFollowing light rays through the scene, including reflections and shadowsBDrawing only outlinesCUsing only 2D spritesDIgnoring lightingView AnswerDiscussWorkspaceReportSaveEasy
15The RGB colour model is:ABased on soundBAdditive, used by displaysCSubtractive, used by printersDUsed only for black-and-whiteView AnswerDiscussWorkspaceReportSaveEasy